<mat-action-list>
        <button mat-list-item (click)="openLink(1,$event)"> 查看活动 </button>
        <button  mat-list-item *ngIf="!data.para.cancel && !data.para.activity.expired && !data.para.checkin" (click)="openLink(2,$event)"> 出示"个人签到码" </button>
        <button  mat-list-item *ngIf="!data.para.cancel && !data.para.activity.expired && !data.para.checkin" (click)="openLink(3,$event)"> 扫描"活动现场码" </button>
        <!-- <button  mat-list-item *ngIf="!data.para.xfuCancel && !data.para.activity.expired" (click)="openLink(4,$event)"> 自主签到 </button>-->
        <button  mat-list-item *ngIf="!data.para.cancel && !data.para.activity.expired && !data.para.checkin" 
            (click)="openLink(5,$event)"> 取消报名 </button>
    </mat-action-list>